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Finding the Fourth Proportional to 11,197,985.80, 16,796,978.70 and 11,011,361.80

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Solution

The fourth proportional to 11,197,985.80, 16,796,978.70 and 11,011,361.80 is: 16,517,042.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,197,985.80 : 16,796,978.70 = 11,011,361.80 : x
  2. Step 2: Convert to fraction form
    11,197,985.80/16,796,978.70 = 11,011,361.80/x
  3. Step 3: Cross multiply
    11,197,985.80x = 16,796,978.70 × 11,011,361.80
  4. Step 4: Simplify right side
    11,197,985.80x = 184,957,609,612,593.66
  5. Step 5: Solve for x
    x = 184,957,609,612,593.66/11,197,985.80
  6. Step 6: Final answer
    x = 16,517,042.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.